Eiko I. Fried is an Associate Professor of Clinical Psychology at Leiden University, blending expertise across clinical psychology, psychiatry, epidemiology, methodology, and complexity science to advance how mental health is conceptualized and modeled. He investigates mental disorders not as fixed categories but as emergent properties of dynamic biopsychosocial systems, emphasizing rigorous measurement, modeling, and classification. Fried leads WARN-D, an initiative funded by an ERC Starting Grant, to develop a personalized early warning system for depression, and is a prominent advocate for open science and robust research integrity. His contributions have earned him several accolades, including the APS Rising Star and Janet Taylor Spence awards, and recognition as a highly cited researcher.